Method of making glass banks



Sept. 28, y1943., yA. K AzlsKA 2,330,353

' METHOD OF MAKING GLASS BANKS original Filed Dec. 14, 193s Syvum/vbo@ /v THON Y Knz :s kn

Patented Sept. 28, 1943 METHOD F MAKING GLASS ANKS Anthony Kaziska, Port Allegany, Pa., assignor to Pittsburgh Corning Corporation,

Allegheny County, Pa., a corporation of Pennsylvania Original application December 14, 1938, Serial No. 245.638. Divided and this application May 25, 1940, Serial No. 337,225

3 Claims.

will become more apparent from the following detailed description of a preferred embodiment thereof.

I am laware that many types of receptacles for money have been proposed and used in the prior art. An attractive bank creates a considerable inducement to save money. The presence of a bank readily available 'at all times apparently acts as an attractive lure and loose change can be placed therein without hardship.

In order to further the desire to save money it is only natural that these small home banks be so constructed that the gradual accumulation of wealth may be observed. Accordingly ordinary clay or metal banks were not entirely satisfactory and there resulted numerous forms of glass receptacles.

It is well known, however, that glass is rather fragile and the ordinary blown or molded containers do not possess sufficient strength to enable them to serve the desired purpose. Other forms of glass receptacles in whichv sections of glass were cemented together were also weak. At the same time, the manufacture of sectional glass containers was rather expensive and the product could not be sold at a reasonable price.

The present invention contemplates the manufacture of a glass bank wherein rectangular cupshaped sections are fused or welded together and as a part of this operation a slot or opening is provided as a means of ingress into the center of vthe rectangular hollow bank. Since the formation of the sections and the completed article is accomplished simply and easily the manufacturing costs are very low. Also because of the shape of the finished bank sufficient strength is retained thereby to withstand hard usage.

In the accompanying drawing illustrating a preferred embodiment of the invention, Fig. l is an isometric view of the completed bank, and Fig. 2 is a fragmentary vertical sectional view taken substantially along the line II-II of Fig. 1.

Referring to the drawing, a bank l comprises two rectangular cup-shaped sections 2 and 3 fused together at their peripheries to form a raised rib-like seam, `as indicated at 4. Along edges forming the joint between the sections 2 and 3, an opening 5 is formed, the opening being pressed into the sections as they are yfused or welded together, that is, the sections are at glasssoftening temperature when brought together.

The process of manufacturing the bank as contemplated by my invention is comparatively simple. The sections 2 and 3 are formed in suitable molds and while the glass is still sufiiciently .fluid to permit fusion the sections are brought together and pressure is applied thereto until the weld is formed. At the time the two sections are joined, however, a lsmall strip of metal 6 is interposed at a point along vthe line of juncture, in order that the subsequent application of pressure will not form a complete weld entirely around the periphery of the bank. The metallic strip may be of 'any desired width and thickness and its presence during the pressing operation causes the formation of the slot 5 in the walls of the rectangular sections 2 and 3.k As clearly shown in Fig. 2, the seam 4 projects to form lips about the opening 5 o-n both thel outside and inside wall surfaces of the sections 2 and 3. The metallic strip, which is non-fusible at the glass fusing temperature, is then removed, the fused sections freed from the pressing mold and the resulting bank is finally subjected to a controlled cooling or annealing to insure the greatest possible strength therein.

If it is desired, the faces of the two sections 2 and 3 may be provided with any suitable decoration either by forming a raised design in the mold or by a subsequent sand-blasting or other operation after the brick has been fabricated.

It will be obvious that various modifications in the size and shape of the elements and their.

manner of assembly may be resorted to without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. A method of making a hollow vglass bankV comprises aligning two heated cupped sections of glass in opposed rim-to-rim relation, pressing the heated opposed rims of the sections together under inuence of suiicient heat and pressure to weld them into an integral unit, interposing a member between the section rims during the pressing action to form a coin-receiving slot at the junction of the welded rims, and subsequently withdrawing said member from the formed slot.

ANTHONY KAZISKA. 

